Corer.



W. G. GROOM.

COR ER.

APPLICATION FILED mm. I. ma.

1.191,588. Patented July18, 1916.

3 SHEETS-SHEET 1.

W. GJGROOM.

CORER.

APPLiCATION FILED mm. 1. 191a.

Patented J uly 18, 1916.

3 SHEETS-SHEET 2.

WITNESSES Y W. G. GROOM.

CORER.

APPLICATION man MAR. 1. 19m.

Patented Jul 18, 1916.

3 SHEETS'SHEET 3 WITNESSES citizen of the United States, residing at TE I s1? I S -ATE QFE ECE.

WEs'L-EY e. onoom, or s'ronm LAKE, mm.

CORER.

Application filed March 1, 1913.

To all whom it may concern:

Be it-known that I, 'Wssmy G.- GROOM,

' corers.

The primary object of the invention contemplates the provision of-sueli a device, wherein the core of an ear of corn may be 'quickl tracts thereby ventilating and drying the cob and conditioning the corn for subsequent use as seed when so desired.

A further object of the invention resides in the provision of u coring device, capable of entirely removing the core fron'ian ear of corn, extracting the sap contained within the cob, and removing the pith, which operation allowsa free circulation of air within the interior of the cob, completely drying the corn and preventing deterioration there- 01 and thus eliminating to a great extent the painstaking care now necessary in preparmg corn for subsequent planting.

v A still further object of the invention is to provide means for conveniently operating the coring-device, and for varying the size, sha e and length of the cob bore as desired.

'1 he above and-additional objects are accomplished by such means as are illustrated in their preferred embodiment in the accompanying drawings, described in the followmg specification and then more particularly pointed out; in the claim which is appendtion. J

In describing my invention in detail reference will be had to the accompanying drawings wherein like characters denote like -ed hereto and forms a part of this applicaor corresponding parts throughout the sevoral views, and in which Figure 1 is a side elevation of a coring machine constructed in accordance with my invention. Fig. 2 is a top plan view of the same. Fig. 3 is an enlarged, detail perspective view of the hit. Fig.4 isi an enlarged elevation, parts being shown in section illus trating the manner nwhich the bit is connected to the operating means. Fig. 5 is an eniarged section on line 5-5 of Fig. 1. Fig. 6 is enlarged section on line i3-6 of Fig. l, and Fig. is a detail cross sectional view of the hit.

Specification of Letters Patent.

and conveniently'removed or ex- Patented July 18, 1916.

Serial no. 751,808.

Before proceeding with the description of the drawings, 1 deslre to call articular at tention to the fact that while have evolved my invention with particular reference to the treating of com, the same can be readily utilized for various other purposes wherein the heart or core of an article or commodity is desired to be removed or extracted. Referring now to the drawings, wherein is illustrated the preferred form of my invention, the numeral 1 designates a suitable stand or supporting structure of any convenient size, shape and material, upon which i the device or machine is mounted. Mounted upon the stand and extendinglongitudinally thereofl provide a shaft 2, one end "of which; terminates in a beveled gear 3, meshing with a similar beveled gear 4 keyed or otherwise secured upon a suitable shaft 5 ]ourneled within a bracket 6 secured as at7 "upon one of the uprights of thestand 'or Pedals 8, may be supporting structure '1. secured to the shaft 5 for rotating the same, .and for operating the device. Although pedals have been shown in the drawings as the preferred means for operating the device,any other means may be employed for imparting movement to the said'shuftf2. Keyed or otherwise secured upon the opposite end of the shaft 2is a sprocket wheel '9 connected to a second sprocket wheel 10 secured upon one end of a shaft 11 through the medium of a suitable chain 12, for impartmg movement from the said shaft 2 to the shaft 11. The shaft 11 is supported upon the top of the supporting structure-1 by means of a small bearing, 12' and a large bearing 13, the latter having a removable topld and a lubricating device 15 formed thereupon. Secured to the shaft 11 and rotatable therewith between the said bearings 12 and 13, I provide a beveled gear 17, se-- tachul le cmery wheel 20, the purposeof which will be hereinafter fully described.

If desired, a crank handle (not shown) may be employed in connection with the ihafzt 18. for operating the entire machine by rain The opposite end of the shaft 11 from that of the sprocket wheel 10 is provided with a head 21 having a screw threaded recess termed therein, the said recess adapt- Ibo ed to receive one end of, a screw threaded shank .23 upon -Wlll0ll the bit (designated in its on irety) 24. is mounted, theinner or vlarge end of the said bit haviuga head provided with a screw threaded bore 26 within which the opposite screw threaded end of the said shank 23 is fitted. .A polyg: onal head 27 is formed integrally with the said head 25 to facilitate-the screwingafid' unscrewing of the bit upon the.shank. i

From the head25, the bit proper 28 pro-- jccts, the said bit.comprising a semicylin-- drical tapering body portion terminating in a point 29 shaped similartoy that of the ordinary carpenters bit. From the head 28 the said bit tapers or conve i'gestoward the point 29, one edge of the body portion of the bit being sharpened as at 30 and provided I with a plurality of spaced apart cut out por- 'tions 31 from which curved tongues 32 -pr0 ject, the said tonguesbeing eurved inwardly and over the hollow of thesaid body' portion as is clearly shown in Figs 30f the drawings, the edges of the said tongue being sharpened to cut and remove the pit of the.

corn cob, during the boring operation of the device, as well as to extract the pith during the removal of the cob from the-said bit.- I

- ,In operation, the ear of corn to bytheliftinglof tllellalldle 35. "After he" mg the ear within thecasing as desired the rack 37 and-the opening 36-thereby firmly holdingthe corn ear operative position. The entire casing s then slideupon the base plate 42 until the end 29 of the bit is brought into ngagementwith the corn ear, whereuponthe simultaneous-rotation of the and the. movement ofthe casing will effect Adjustably mounted upon the top of the supporting structure 1 I provide. a casing 33 cylindrical in shape-and comprising'an' upper and lower portion hingedly co nected as at 34: to permit access to the in teri fot the' 1 saidcasing. A handle 35 is formed intecasing and projects laterally therefrom, the said handle having a11.opening'36';near its inner'end through which a spring tooth rack grally withthe upper portion of .the said' 37 normally extends, the toothedface of the 'said rack engaging oneedge of the opening 36 for holding the upper portion tightly closed during the operation of the device,

as the said toothed rack is secured as -at 38 to the lower portion of the casing 33. The

casing 33 is secured as at 39 uponthe upper face of a spring plate 40 slidably mounted -within and beneath the curved edges 41 of 'a base-plate 42 in turn permanently secured upon the upper face of-the saidlsupporting structure, By reason oi this fiarticularoonstruction, it will be seen that the spring plate 40 will compensate for varying sizes ofworlr by permitting the vertical oenteringof the holder with respect to the corer, thereby insuring theeflicient ophration of the device at "all times.

The base plate 42 as well as the top of the supporting structure 1 is provided with an opening 43 through which the core or hear extracted during the operation of the device is free topa the said opening being disposed Tdiregt eneath the bit 24. A recep tacle, in the grip-0t a draw 44 -15 removably mounted upotrthe under face of the said top 1 of thesupporthig structure through the desired boring operation. By sliding the casing until the end 29 of the bit extends entirely through thecob, the entire heart or as said handle is lowered and locked by the en- .g agement between the toothed face of the core of the same isjcompletely removed, and

extracted by withdrawing the corn eat fromengaging the said bit 24:, the tongnes 32 enabling the extraction of the-core during thesai d sliding movement of the casing 1 Pithan'd other'w'aste core materi'alis col leeted within the receptacle 44 provided for that purpose, and later removed'as desired.

The emery wheel 20, operated by the rota-' tion of the'shaft' 11 is mounted upon the support ng istruct re -.1 for the purpose of sharpening the 'c'tt-ing; edge 30 of "the bit .when the same becomes dulled by constant It will be seen from-the abore, taken in connection with the accompanying drawings that the entire core and heart of: then corn ear is removed by'the bit 2t, thereby allowing a free circulation of air within the 1 interior of the cob; that the of a bore may be varied as desired; and that .tue dan.

ger of cutting or; otherwise injuring the hands of the operator is completely avoided by the provision oft-he casing 31-; within which the corn ear to be acted upon placed and contained during the entire 1 of the core extraction VVhi-le I have shown and descrii e cially devised Tit in connection with vention, TI do? not wish to limit-m such, as various forms may be without departing from the spirit 0;

vention, or if desired the bit as shown her ei: may be employed in-connection with an on dinary brace, operated by hand, and in this manner used forthe purpose of removing the heart of the corn cob) It will be funderstood that the above de- 1 -.:linient of my invention, and thatfvarious minor changes in the details of construction,

proportion and arrangement of part-s may he made \vnhin the scope of the appended (.l'2lllll and without sacrificing any of the advantages otmy invention.

Having thus fully described my invention, that I claim as new and desire to seeureby-Lettcrs Patent, is 2- The combination with a coring machine including a rotatable .eorer and operatin means therefor; of a plate having longitudinally disposed guides, a resilient plate hava centrally located upwardly-bowed portion, the longitudinal edge portions of said resilient plate being disposed in said guides,

and a Wonk holder fixed to the bowed por tion of said resilient-plate in alinenient with said corer; whereby said resilient plate will compensate for varying sizes of work by permitting the centering of said holder with respect to the 'corer.

In testimony whereof I'afiix my signature 5 in presence of two witnesses.

WESLEY G. GROOM.

Witnesses: w

I C. C. Dams,

FRED SCHALLER. 

